[Notanlines]

This probably isn't the answer you were hoping for, but it does ring true anyway. No, you can't run your standard 120 volt refrigerator off 2 6 volt batteries FOR ANY APPRECIABLE LENGTH OF TIME." Your RV probably has an inverter that will run it for a short period, but those two batteries will run down quickly. I'm sure others here will chime in on how long it can run with an answer more accurately than mine. I'm guessing about 3 to 5 hours max. I might also add that many inverters cut off when the battery supply reaches about 40-50% so they don't run dead flat. Many Suites owners have gone to a 4 battery setup that may help with your situation. Search this site or IRV2.com for more answers. And, by the way, welcome to the forum.